Upgrade of JEOL JXA 8600 electron microprobe at the University of Georgia

斯旺森0947187该合同在12个月内为美国国家科学基金会提供181,586美元的资金，用于购买三个主要的电子探针组件：能量色散分析光谱仪、Tracor Northern光谱仪自动化系统和PAC X射线计数电子设备，所有这些都需要更换机构--S电磁脉冲。这台升级后的仪器将用于岩石学研究和考古材料分析。来自蓝岭(阿巴拉契亚造山带南部)的超镁铁质岩石将被评估其来源。PI还将使用该仪器研究来自雷杜特火山的鳍状硬石膏、来自北卡罗来纳州西部的花岗岩、来自南美洲的地壳熔融、含水和挥发相、行星物质以及地球-S地幔中的交代流体。此外，升级后的电磁脉冲将用于了解矿物组成、分区和相比例。机构和外部合作者也将得到分析支持。这些所需的设备是保持设施正常运行所必需的。从历史上看，电磁脉冲实验室已经产生了大约100篇研究论文、大量摘要和30多篇硕士和博士论文。EMP设施为UGA的地质和化学部门以及东南部的其他地球科学部门提供支持。提案中概述的一项新举措是，利用该设施支持东南地区四年制院校的学生更广泛地参与其中，这些学生无法在校园内使用微探测器设施。地质部为该仪器提供服务合同，并为一名全职电子显微探头实验室协调员提供支助。技术人员负责仪器的日常工作，并为用户提供日程安排和培训。*

Swanson0947187This award provides $181,586 in NSF funding over 12 months to acquire three major electron microprobe components; the energy dispersive analytical spectrometer (EDS), the Tracor Northern spectrometer automation system and the PAC X-ray counting electronics which all need replacing on the institution?s EMP. This upgraded instrument will be used for petrologic studies and analyzing archaeological materials. Ultramafic rocks from the Blue Ridge (southern Appalachian Orogen) will be assessed for origin. The PIs will also use the instrument to study fin-grained anhydrites from the Redoubt Volcano, granitic rocks from western North Carolina, crustal melts from South America, hydrous and volatile phases, planetary materials, and metasomatic fluids in the Earth?s mantle. Additionally, the upgrade EMP will be used for understanding mineral composition, zoning and phase proportions. Institutional and outside collaborators will also be analytically-supported. This requested equipment is needed to keep the facility up and running. Historically, the EMP lab has led to approximately 100 research papers, numerous abstracts and more than 30 M.S. theses and Ph.D. dissertations. The EMP facility supports Geology and Chemistry departments at UGA and other geoscience departments in the Southeast. A new initiative outlined in the proposal is to use the facility to support wider participation by students at 4-year institutions in the Southeast who do not have on-campus access to a microprobe facility. The Department of Geology provides a service contract for this instrument and supports a full-time Electron Microprobe Laboratory Coordinator. The technician works with the instrument day-to-day and provides scheduling and training for users.***